Update main.py

main.py

@@ -67,6 +67,8 @@ async def callback_button(client: Client, cb: CallbackQuery):
 async def tiktok_downloader(client: Client, message: Message):
     if message.text:
         query = message.text
+        if not query.startswith("https://vt.tiktok.com/") and not query.startswith("https://www.tiktok.com/"):
+            return await message.reply_text("Invalid link")
         callback_data = generate_callback_data(message.from_user.id, query)
         keyboard = InlineKeyboardMarkup(
             [